@uniswap/smart-order-router
Version:
Uniswap Smart Order Router
285 lines • 24.4 kB
JavaScript
import { Protocol } from '@uniswap/router-sdk';
import { ChainId } from '@uniswap/sdk-core';
import retry from 'async-retry';
import Timeout from 'await-timeout';
import { gql, GraphQLClient } from 'graphql-request';
import _ from 'lodash';
import { log, metric } from '../util';
export const PAGE_SIZE = 1000; // 1k is max possible query size from subgraph.
export const BASE_V4_PAGE_SIZE = 3500; // TheGraph v4 base max pagesize is 3600.
export class SubgraphProvider {
constructor(protocol, chainId, retries = 2, timeout = 30000, rollback = true, trackedEthThreshold = 0.01, trackedZoraEthThreshold = 0.001, zoraHooks,
// @ts-expect-error - kept for backward compatibility
untrackedUsdThreshold = Number.MAX_VALUE, subgraphUrl, bearerToken) {
this.protocol = protocol;
this.chainId = chainId;
this.retries = retries;
this.timeout = timeout;
this.rollback = rollback;
this.trackedEthThreshold = trackedEthThreshold;
this.trackedZoraEthThreshold = trackedZoraEthThreshold;
this.zoraHooks = zoraHooks;
this.untrackedUsdThreshold = untrackedUsdThreshold;
this.subgraphUrl = subgraphUrl;
this.bearerToken = bearerToken;
this.protocol = protocol;
if (!this.subgraphUrl) {
throw new Error(`No subgraph url for chain id: ${this.chainId}`);
}
log.info('bearerToken is', this.bearerToken);
if (this.bearerToken) {
this.client = new GraphQLClient(this.subgraphUrl, {
headers: {
authorization: `Bearer ${this.bearerToken}`,
},
});
}
else {
this.client = new GraphQLClient(this.subgraphUrl);
}
if (protocol === Protocol.V4 && this.zoraHooks.size === 0) {
throw new Error('Zora hooks param is mandatory for V4');
}
}
async getPools(_currencyIn, _currencyOut, providerConfig) {
const beforeAll = Date.now();
let blockNumber = (providerConfig === null || providerConfig === void 0 ? void 0 : providerConfig.blockNumber)
? await providerConfig.blockNumber
: undefined;
const pageSizeToUse = this.protocol === Protocol.V4 && this.chainId == ChainId.BASE
? BASE_V4_PAGE_SIZE
: PAGE_SIZE;
log.info(`Getting ${this.protocol} pools from the subgraph with page size ${pageSizeToUse}${(providerConfig === null || providerConfig === void 0 ? void 0 : providerConfig.blockNumber)
? ` as of block ${providerConfig === null || providerConfig === void 0 ? void 0 : providerConfig.blockNumber}`
: ''}.`);
// Define separate queries for each filtering condition
const queries = [
// 1. Pools with high tracked ETH (for both V3 and V4)
{
name: 'High tracked ETH pools',
query: gql `
query getHighTrackedETHPools($pageSize: Int!, $id: String, $threshold: String!) {
pools(
first: $pageSize
${blockNumber ? `block: { number: ${blockNumber} }` : ``}
where: {
id_gt: $id,
totalValueLockedETH_gt: $threshold
}
) {
${this.getPoolFields()}
}
}
`,
variables: { threshold: this.trackedEthThreshold.toString() },
},
// 2. V4: Non-Zora pools with liquidity > 0
...(this.protocol === Protocol.V4
? [
{
name: 'V4 non-Zora high liquidity pools',
query: gql `
query getV4NonZoraHighLiquidityPools($pageSize: Int!, $id: String, $zoraHooks: [String!]!) {
pools(
first: $pageSize
${blockNumber ? `block: { number: ${blockNumber} }` : ``}
where: {
id_gt: $id,
liquidity_gt: "0",
hooks_not_in: $zoraHooks
}
) {
${this.getPoolFields()}
}
}
`,
variables: { zoraHooks: Array.from(this.zoraHooks) },
},
// 3. V4: Zora pools with liquidity > 0 AND TVL > trackedZoraEthThreshold
{
name: 'V4 Zora high liquidity pools',
query: gql `
query getV4ZoraHighLiquidityPools($pageSize: Int!, $id: String, $zoraHooks: [String!]!, $zoraThreshold: String!) {
pools(
first: $pageSize
${blockNumber ? `block: { number: ${blockNumber} }` : ``}
where: {
id_gt: $id,
liquidity_gt: "0",
hooks_in: $zoraHooks,
totalValueLockedETH_gt: $zoraThreshold
}
) {
${this.getPoolFields()}
}
}
`,
variables: {
zoraHooks: Array.from(this.zoraHooks),
zoraThreshold: this.trackedZoraEthThreshold.toString(),
},
},
]
: []),
// 4. V3: Pools with liquidity > 0 AND totalValueLockedETH = 0 (special V3 condition)
...(this.protocol === Protocol.V3
? [
{
name: 'V3 zero ETH pools',
query: gql `
query getV3ZeroETHPools($pageSize: Int!, $id: String) {
pools(
first: $pageSize
${blockNumber ? `block: { number: ${blockNumber} }` : ``}
where: {
id_gt: $id,
liquidity_gt: "0",
totalValueLockedETH: "0"
}
) {
${this.getPoolFields()}
}
}
`,
variables: {},
},
]
: []),
];
let allPools = [];
let retries = 0;
await retry(async () => {
const timeout = new Timeout();
const fetchPoolsForQuery = async (queryConfig) => {
let lastId = '';
let pools = [];
let poolsPage = [];
let totalPages = 0;
do {
totalPages += 1;
const start = Date.now();
log.info(`Starting fetching for ${queryConfig.name} page ${totalPages} with page size ${pageSizeToUse}`);
const poolsResult = await this.client.request(queryConfig.query, {
pageSize: pageSizeToUse,
id: lastId,
...queryConfig.variables,
});
poolsPage = poolsResult.pools;
pools = pools.concat(poolsPage);
if (pools.length > 0) {
lastId = pools[pools.length - 1].id;
}
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools.${queryConfig.name
.replace(/\s+/g, '_')
.toLowerCase()}.paginate.pageSize`, poolsPage.length);
log.info(`Fetched ${poolsPage.length} pools for ${queryConfig.name} in ${Date.now() - start}ms`);
} while (poolsPage.length > 0);
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools.${queryConfig.name
.replace(/\s+/g, '_')
.toLowerCase()}.paginate`, totalPages);
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools.${queryConfig.name
.replace(/\s+/g, '_')
.toLowerCase()}.pools.length`, pools.length);
return pools;
};
try {
// Fetch pools for each query in parallel
const poolPromises = queries.map((queryConfig) => fetchPoolsForQuery(queryConfig));
const allPoolsArrays = await Promise.all(poolPromises);
// Merge all results and deduplicate by pool ID
const poolMap = new Map();
allPoolsArrays.forEach((pools) => {
pools.forEach((pool) => {
poolMap.set(pool.id, pool);
});
});
allPools = Array.from(poolMap.values());
const getPoolsPromise = Promise.resolve(allPools);
const timerPromise = timeout.set(this.timeout).then(() => {
throw new Error(`Timed out getting pools from subgraph: ${this.timeout}`);
});
allPools = await Promise.race([getPoolsPromise, timerPromise]);
return;
}
catch (err) {
log.error({ err }, `Error fetching ${this.protocol} Subgraph Pools.`);
throw err;
}
finally {
timeout.clear();
}
}, {
retries: this.retries,
onRetry: (err, retry) => {
retries += 1;
if (this.rollback &&
blockNumber &&
_.includes(err.message, 'indexed up to')) {
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools.indexError`, 1);
blockNumber = blockNumber - 10;
log.info(`Detected subgraph indexing error. Rolled back block number to: ${blockNumber}`);
}
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools.timeout`, 1);
allPools = [];
log.info({ err }, `Failed to get pools from subgraph. Retry attempt: ${retry}`);
},
});
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools.retries`, retries);
const beforeFilter = Date.now();
let poolsSanitized = [];
if (this.protocol === Protocol.V3) {
// Special treatment for all V3 pools in order to reduce latency due to thousands of pools with very low TVL locked
// - Include "parseFloat(pool.totalValueLockedETH) === 0" as in certain occasions we have no way of calculating derivedETH so this is 0
poolsSanitized = allPools
.filter((pool) => (parseInt(pool.liquidity) > 0 &&
parseFloat(pool.totalValueLockedETH) === 0) ||
parseFloat(pool.totalValueLockedETH) > this.trackedEthThreshold)
.map((pool) => {
return this.mapSubgraphPool(pool);
});
}
else if (this.protocol === Protocol.V4) {
// For V4, apply additional filtering as a safety measure even though queries are optimized
poolsSanitized = allPools
.filter((pool) => {
const liquidity = parseInt(pool.liquidity);
const tvl = parseFloat(pool.totalValueLockedETH);
const hooks = pool.hooks;
const isZora = this.zoraHooks.has(hooks);
if (isZora) {
return tvl > this.trackedZoraEthThreshold;
}
return liquidity > 0 || tvl > this.trackedEthThreshold;
})
.map((pool) => {
return this.mapSubgraphPool(pool);
});
}
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools.filter.latency`, Date.now() - beforeFilter);
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools.filter.length`, poolsSanitized.length);
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools.filter.percent`, (poolsSanitized.length / allPools.length) * 100);
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools`, 1);
metric.putMetric(`${this.protocol}SubgraphProvider.chain_${this.chainId}.getPools.latency`, Date.now() - beforeAll);
log.info(`Got ${allPools.length} ${this.protocol} pools from the subgraph (after deduplication). ${poolsSanitized.length} after filtering`);
return poolsSanitized;
}
// Helper method to get the pool fields for GraphQL queries
getPoolFields() {
return `
id
token0 {
symbol
id
}
token1 {
symbol
id
}
feeTier
liquidity
totalValueLockedUSD
totalValueLockedETH
`;
}
}
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